Painted walls should be cleaned from least aggressive to more aggressive: dust first, test mild soapy water, then treat specific marks. Sheen and paint age affect how much rubbing the surface can tolerate.
Remove dust before adding moisture
Use a dry cloth, clean dust mop, or vacuum with a soft brush. Wet dust can turn into streaks that are harder to remove.
Test an inconspicuous area
Wipe with a well-wrung sponge using warm water and a few drops of detergent. If color transfers, sheen changes, or a halo appears, reduce moisture and friction.
Work bottom to top to control drips
On heavily soiled walls, working in small sections keeps dirty water from running over dry paint and leaving streaks. Follow with a second barely damp cloth.
Flat paint needs extra gentleness
Flat finishes tend to mark and burnish more easily than satin paint. For stubborn scuffs, a small paint touch-up may be safer than rubbing until a shiny patch appears.
Sources
- American Cleaning Institute — Cleaning Tips — Household cleaning practices, product dosing, and label-compatible surface care.